A copper calorimeter of a mass 300 g contains 500 g of water at a temperature of 20^@C A 500 g of copper block at 100^@Cis dropped into calorimeter . If the resultant temperature is 25^@C .then find the specific heat of copper in J "kg"^(-1)K^(-1) .

A copper calorimeter of a mass 300 g contains 500 g of water at a temp

1.	A copper calorimeter of a mass 300 g contains 500 g of water at a temperature of 20^@C A 500 g of copper block at 100^@Cis dropped into calorimeter . If the resultant temperature is 25^@C .then find the specific heat of copper in J "kg"^(-1)K^(-1) .
Answer» 190 290 390 490 Answer :B